/*
 *    Copyright (c) 2023 AsyncHttpClient Project. All rights reserved.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package org.asynchttpclient.util;

import org.asynchttpclient.AsyncHttpClient;

/**
 * An interface that defines useful methods to check how many {@linkplain AsyncHttpClient}
 * instances this particular implementation is shared with.
 */
public interface Counted {

    /**
     * Increment counter and return the incremented value
     */
    int incrementAndGet();

    /**
     * Decrement counter and return the decremented value
     */
    int decrementAndGet();

    /**
     * Return the current counter
     */
    int count();
}
